CVE-2020-36519
MEDIUM
4.9
CVSS Score
Published: March 15, 2022 at 11:45 PM UTC
Updated: June 17, 2026 at 03:15 AM UTC
1 product affected across 1 vendorEmail Security
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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.8%
Description
Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. (The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs.)
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2020-01-10
Affected range stops below 2020-01-10, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://wesleyk.me/2020/01/10/my-first-vulnerability-mimecast-sender-address-verification/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- HIGH
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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